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1、BRITISH STANDARD BS EN 61496-3:2001 IEC 61496-3:2001 Safety of machinery Electro-sensitive protective equipment Part 3: Particular requirements for Active Opto-electronic Protective Devices responsive to Diffuse Reflection (AOPDDR) The European Standard EN 61496-3:2001 has the status of a British St
2、andard ICS 13.110: 31.260 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 61496-3:2001 This British Standard, having been prepared under the direction of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into ef
3、fect on 15 August 2001 BSI 08-2001 ISBN 0 580 37896 9 National foreword This British Standard is the official English language version of EN 61496- 3:2001. It is identical with IEC 61496-3:2001. The UK participation in its preparation was entrusted to Technical Committee GEL/44, Safety of machinery
4、- Electrotechnical aspects, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 6
5、0027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Stand
6、ards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible f
7、or their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK
8、interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 56, an inside back cover and a back cover. The BSI copyright date displayed in this
9、document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARDEN 61496-3 NORME EUROPENNE EUROPISCHE NORMMay 2001 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisc
10、hes Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2001 CENELEC -All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61496-3:2001 E ICS 13.110; 29.260 English version Safety of machinery - Electr
11、o-sensitive protective equipment Part 3: Particular requirements for Active Opto-electronic Protective Devices responsive to Diffuse Reflection (AOPDDR) (IEC 61496-3:2001) Scurit des machines - Equipements de protection lectro- sensibles Partie 3: Prescriptions particulires pour les quipements utili
12、sant des dispositifs protecteurs opto-lectroniques actifs sensibles aux rflexions diffuses (AOPDDR) (CEI 61496-3:2001) Sicherheit von Maschinen - Berhrungslos wirkende Schutzeinrichtungen Teil 3: Besondere Anforderungen an aktive optoelektronische diffuse Reflektion nutzende Schutzeinrichtungen (AOP
13、DDR) (IEC 61496-3:2001) This European Standard was approved by CENELEC on 2001-03-06. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date li
14、sts and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the
15、responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland
16、, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Foreword The text of document 44/287/FDIS, future edition 1 of IEC 61496-3, prepared by IEC TC 44, Safety of machinery - Electrotechnical aspects, was submitted to the IEC-CENELEC parallel vote and was
17、 approved by CENELEC as EN 61496-3 on 2001-03-06. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement(dop) 2002-01-01 latest date by which the national standards conflicting with the EN
18、 have to be withdrawn(dow) 2004-04-01 This standard is to be used in conjunction with EN 61496-1:1997 Annexes designated “normative“ are part of the body of the standard. Annexes designated “informative“ are given for information only. In this standard, annexes A, B and ZA are normative and annexes
19、C, AA and BB are informative. Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61496-3:2001 was approved by CENELEC as a European Standard without any modification. _ EN 614963:2001 2 BSI 08-2001 CONTENTS Page INTRODUCTION 5 Clause 1Scope 6 2Normati
20、ve references. 7 3Definitions 7 4Requirements 7 4.1Functional requirements 7 4.2Design requirements. 8 4.3Environmental requirements.12 5Testing .15 5.1General .15 5.2Functional tests .15 5.3Performance testing under fault conditions.20 5.4Environmental tests .21 6Marking for identification and for
21、safe use .32 7Accompanying documents.32 Annex A (normative) Optional functions of the ESPE.42 Annex B (normative) Catalogue of single faults affecting the electrical equipment of the ESPE, to be applied as specified in 5.345 Annex C (informative) Bibliography46 Annex AA (informative) Examples of the
22、 use of an AOPDDR in different applications47 Annex BB (informative) Relationship between ranging accuracy and probability of detection .51 Annex ZA (normative) Normative references to international publications with their corresponding European publications56 Figure 1a Example of a maximum detectio
23、n zone of an AOPDDR .34 Figure 1b Example of a detection zone of an AOPDDR .34 Figure 2 Minimum diffuse reflectivity of materials 35 Figure 3a Influence on detection capability by background 35 Figure 3b Influence on detection capability by incandescent light Example 1.36 Figure 3c Influence on dete
24、ction capability by incandescent light Example 236 Figure 3d Influence on detection capability by light reflected by the background 37 Figure 3e Influence on detection capability by stroboscopic light Example 1 37 Figure 3f Influence on detection capability by stroboscopic light Example 2 .38 Figure
25、 3g Light interference test .38 Figure 3h Interference between two AOPDDRs of identical design 39 Figure 4a Configuration for the endurance test Example 140 Figure 4b Configuration for the endurance test Example 240 Figure 5 Test of homogeneous pollution41 EN 614963:2001 3 BSI 08-2001 Page Figure AA
26、.1 Example of the use of an AOPDDR on machinery48 Figure AA.2 Example of the use of an AOPDDR on an AGV49 Figure AA.3 Example of the use of an AOPDDR as a whole-body trip device .50 Figure BB.1 Relationship between ranging accuracy and detection zone .51 Figure BB.2 Relationship between ranging accu
27、racy, detection zone and the probabilistic part of the tolerance zone.52 Figure BB.3 Relationship between ranging accuracy, detection zone and tolerance zone Example 153 Figure BB.4 Relationship between ranging accuracy, detection zone and tolerance zone Example 253 Figure BB.5 POD of a single measu
28、rement (logarithmic) for a MooM-evaluation with 1 ? M ? 5054 Figure BB.6 POD of a single measurement for a MooM-evaluation with 1 ? M ? 50 in relation to ? in the case of a normal distribution .55 Table 1 Verification of detection capability requirements (see also 4.2.12.1)16 Table 2 Overview of lig
29、ht interference tests.25 EN 614963:2001 4 BSI 08-2001 INTRODUCTION An electro-sensitive protective equipment (ESPE) is applied to machinery presenting a risk of personal injury. It provides protection by causing the machine to revert to a safe condition before a person can be placed in a hazardous s
30、ituation. This part supplements or modifies the corresponding clauses in IEC 61496-1 to specify particular requirements for the design, construction and testing of electro-sensitive protective equipment (ESPE) for the safeguarding of machinery, employing active opto-electronic protective devices res
31、ponsive to diffuse reflection (AOPDDRs) for the sensing function. Where a particular clause or subclause of part 1 is not mentioned in this part 3, that clause or subclause applies as far as is reasonable. Where this part states “addition“, “modification“ or “replacement“, the relevant text of part
32、1 should be adapted accordingly. Supplementary annexes are entitled AA, BB, etc. Each type of machine presents its own particular hazards, and it is not the purpose of this standard to recommend the manner of application of the ESPE to any particular machine. The application of the ESPE should be a
33、matter for agreement between the equipment supplier, the machine user and the enforcing authority. In this context, attention is drawn to the relevant guidance established internationally, for example, ISO/TR 12100. NOTEAnnex AA contains application examples providing general information and address
34、ing specific characteristics relevant to the use of the ESPE described in this part of IEC 61496. An application standard for various types of ESPE is in preparation. EN 614963:2001 5 BSI 08-2001 SAFETY OF MACHINERY ELECTRO-SENSITIVE PROTECTIVE EQUIPMENT Part 3: Particular requirements for Active Op
35、to-electronic Protective Devices responsive to Diffuse Reflection (AOPDDR) 1 Scope Replacement: This part of IEC 61496 specifies additional requirements for the design, construction and testing of electro-sensitive protective equipment (ESPE) for the safeguarding of machinery, employing active opto-
36、electronic protective devices responsive to diffuse reflection (AOPDDRs) for the sensing function. Special attention is directed to requirements which ensure that an appropriate safety-related performance is achieved. An ESPE may include optional safety- related functions, the requirements for which
37、 are given both in annex A of this part and in annex A of IEC 61496-1. This part does not specify the dimensions or configurations of the detection zone and its disposition in relation to hazardous parts for any particular application, nor what constitutes a hazardous state of any machine. It is res
38、tricted to the functioning of the ESPE. AOPDDRs are devices that have a detection zone specified in two dimensions wherein radiation in the near infrared range is emitted by a transmitter element(s). When the emitted radiation impinges on an object (for example, a person or part of a person), a port
39、ion of the emitted radiation is reflected to a receiving element(s) by diffuse reflection whereby the presence of the object can be detected. NOTEUnder certain circumstances, limitations of the sensor in relation to its use need to be considered. For example: Objects that generate mirror-like (specu
40、lar) reflections may not be detected if the diffuse reflectance value is less than that specified for the “black“ test piece. The determination of the minimal reflection factors for the detection of obstacles is based on the clothing of a person. Objects having a reflectivity lower than that conside
41、red in this part may not be detected. Excluded from this part are AOPDDRs employing radiation of wavelength outside the range 820 nm to 946 nm, and those employing radiation other than that generated by the AOPDDR itself. For sensing devices that employ radiation of wavelengths outside this range, t
42、his part may be used as a guide. Also excluded are AOPDDRs having a stated detection capability outside the range 50 mm to 100 mm. This part may be relevant to applications other than those for the protection of persons, for example, for the protection of machinery or products from mechanical damage
43、. In such applications, additional requirements may be necessary, for example, when the materials that have to be detected by the sensing function have different properties from those of persons and their clothing. This part does not deal with electromagnetic compatibility (EMC) emission requirement
44、s. Opto-electronic devices that perform only one-dimensional spot-like distance measurements, for example, proximity switches, are not covered by this part. EN 614963:2001 6 BSI 08-2001 2 Normative references Addition: IEC 60068-2-14:1984, Environmental testing Part 2: Tests Test N: Change of temper
45、ature IEC 60068-2-75:1997, Environmental testing Part 2-75: Tests Test Eh: Hammer tests IEC 60825-1:1993, Safety of laser products Part 1: Equipment classification, requirements and users guide IEC 61496-1:1997, Safety of machinery Electro-sensitive protective equipment Part 1: General requirements
46、and tests EN 471:1994, High-visibility warning clothing 3 Definitions Addition: 3.301 active opto-electronic protective device responsive to diffuse reflection (AOPDDR) device, whose sensing function is performed by opto-electronic emitting and receiving elements, that detects the diffuse reflection
47、 of optical radiations generated within the device by an object present in a detection zone specified in two dimensions 3.302 AOPDDR detection capability ability to detect the specified test pieces (see 4.2.13) in the detection zone 3.303 tolerance zone zone outside the detection zone which is neces
48、sary to achieve the required probability of detection of the specified test piece(s) (see 4.2.13) within the detection zone 4 Requirements This clause of part 1 is applicable except as follows: 4.1 Functional requirements 4.1.3Types of ESPE Replacement: In this part of IEC 61496 only a type 3 ESPE i
49、s considered. It is the responsibility of the machine supplier and/or the user to prescribe if this type is suitable for a particular application. The type 3 ESPE shall fulfil the fault detection requirements of 4.2.2.4 of this part. In normal operation, the output circuit of each of at least two output signal switching devices (OSSDs) of the type 3 ESPE shall go to the OFF-state when the sensing device is actuated, or when t